Separation of Microplastics and Nanoplastics from Various Environments and Associated Challenges

Once the sample collection process ends, different sample preservation and separation methods can be used for plastics but the separation of various plastics from environmental matrices is still challenging. This chapter comprehensively reviews various techniques like filtration, sieving, density-based separations, elutriation, oil film formation, and froth flotation for the separation of microplastics and nanoplastics from aquatic, atmospheric, and sediment samples. Furthermore, limitations and associated challenges with each technique are also discussed.